Improvement in in roving-frames



. provemenu l -same. Fig. 3 is a vertlcal section of myim- UNITED STATESl PATENT OFFICE.

THOMAS MAYOR, OF PAWTUCKET, ASSIGNOR TO` GEORGE CHATTERTON, OF

PROVIDE-NOE, RHODE ISLAND.

IMPROVEMENTIN IN RovlNG-FRAMES.

' Specification formin g part of Letters Patent No. 46,530, datedFebruary 21, 1865.

To all whom it may concern:

Be iti-known that I, THOMAS MAYOR, of Pawtucket, in the county ofProvidence and State ot" Rhode Island, have invented a new andusefulflmprovement in Roving-Frames for Spinnin g,'.Rovin g, Snc. 5 andI do hereby declare that the following is a full, clear, and

exact description of the same, reference being had to the accompanyingdrawings, making part of this specification, in which- IFigure l. is anelevation of alrovingspindle and its appendages, which embodies my im-Fig. 2 is a vertical section of the proved spindle-bolster detached.Fig. 4is an elevation of the same. section. Fig. 6 is an elevation, andFig. 7 is a plan, of my improved 'gear and collar for revolving thebobbin. Fig. 8 is avertical section, and Fig. 9 is an elevation, of thebobbin that is designed to be used with my improvements. flier77arranged with my improved 4 presser, and Fig. ll is a plan of the same.Fig. 12 lis an elevation of the spindle detached. An end elevation ofthe roving-frame, to which my improvements are applied, is. shown indotted lines properly arranged in' connection with Figs. land 2. l

Similar letters of reference indicate corresponding parts in all thefigures.

My invention conslsts in so constructing the t bolster, or partthat-forms the upper bearingv to the spindles of roving-frames, andconnect- 'ing' it to the traverse-rail which carries the bobbinslongitudinally upon the spindles, as to extend the upper bearing. nearto the top of the spindle, and'to reciprocate the said bearing betweenthe top of the spindle and the delivering-point of the hier Vwhichdelivers the roving to the windingbobbin, or between. the top ofthespindle and the traverse-rail, for the purpose of giving a firm supportand bearing to the top of the spindle and to admit of its running withuniform steadiness at the higher rates ot' speed.

To enable others skilledin the art to make and use my invention, I, willproceed to describe the same.

In the drawings, a,Figs. 1,2, and 12, is the Fig. 5 is a vertical Fig.10 is an elevation of a roving spindle,having one bearing at thebottomin the step e, which is firmly secured to `the stationary rail d, andanother bearing' near the top, formed by the bolster f. Art the top ofthe spindle is secured the hier T, to revolve which is the ofce ofthespindle, for the purpose of'putting the requisite twist into the rovingand winding the same on the bobbin as it is twisted.` The bolster f isconstructed as shown in Figs. 3' and 4. .[t is cast solidly in one pieceof metal, and consists of a tube or sleeve, f, surronndingthe spindle,the upper interior portion of which forms the upper bearing to thespindle, while. .the exterior portionforms a bearing for the collar nand-the bob-` bin s, and the tube f has a standard or footpiece, l,formed onone'sideof' its base f, by which it is secured rto the side ofthe trav erse-rail G, as shown in Figs. 1, 2, 3, and 4. This rail hasavertical reciprocating movement produced by the rack D,.to which therailG is connected by arms b, and the pinion E by the revolution of thelatter in opposite directions alternately, and the tube f may extendabove the traverserail G to such a height as Will place the upper end ofthe bolster-tube at the topof. the spindle when 'the traverse-rail is atits highest elevation. 1nstead, however, of having a bearing for thespindle throughout the entire length ofthe tube I make a bearing'of sometwo or threcinches in length at the top of the tube, and bore theremaining llength as much larger than the spindle as is necessary tofree it from contact therewith while it istu'rning.- c

The advantages of casting orforin'ing the bolster of'one 'piece insteadof two, consisting of a standard orrarm, which is secured to the railand is formed with a sleeve or socket, in which the secondpiece,consisting of a tube or bushing, is placed and held by a set screw, is

that the structure is'primari-ly much stiffer, and therefore suffersless from wear than the bolster in two pieces, besides bein glnoreea sily wrought into its desired size and forni, and, in consequence, lessexpensive.

The advantage of securing the foot-piece l of the bolster to the side ofthe rail instead ot' upon the top of the rail, as has hitherto been thepractice, is that when (as often happens) a n l 46,530

the cotton fiber adheres to the whirlingspingets between the spindle andthe bolster, Yit so clogs and resists the separate movements of each asto'lift or wrench the foot-piece of the bolster from the top ot the railor break the foot-piece from the bolster, either casualty resulting in astoppage of the entire machine while the injury is being repaired.Bolsters for ,this purpose have heretofore been constructed like the4base f Without the tube above,\in which case the upper bearing is placedin the middle 0f the spindle,"which affords so little support to the topthat theweight and operation of the tlier thereon causes the upper partVto shake and Wabble, in consequence of which the spindle cannot hedriven at a highspeed, and the bolster and spindle soon wearexcessively, and by an increased wabbling cause the roving to breakfrequently, which is exceedingly injurious to the manufacture. t rloremedy this a long stationary tube has been used, which incloses abouthalf the lengthof the spindle in the middle offthe same, and upon whichtube the bobbin and the geared-collar by. which it is driven is revolvedand reciprocated longitudinally. This construction does not place theupper bearing nearer the top of the spindle than4 the distance traversedbythe bobbin, or, in other words, than the length of the bobbin, and toprevent the bilidin g which necessarily results from the use of so'longa bearing, in connection with another bearing-the step-on the same spin"dle both the said bearings are mounted on swivels, which will compensatefor any variation from the t-rue position of either, and thusavoid-bindin g, the Whole making a-com plicatcd and expensiveconstruction.

It will be seen' by referenceto the drawings that my improved bolsterextends the upper bearing of the spindle near to its.top,.and only whenthe traverserail is in its lowest position is this bearing placed aslowdown on the spindle as the delivering point or end of the flier, andthat during all other times it is reciprocated between this point landthe extreme top of the spindle, and it is in consequence of thisrelative positionof this bearing with the spindle that I am enabled toprevent the spindle from springing and wabbling in its bolster, andavoid the excessive wear resulting therefrom, and to drive and maintainthe same spindles at a higher rate of speed than has heretofore beenattained in these machines.

It has beenl above specified that the improved bolster extends the upperbearing near to the top ofthe' spindle, and that greater' steadine's'sis given to the top of the spindle, vand that a higher rate of speedisin consequence attainable; but it is obvious that` it' the tube f ismade shorter and does `not extend nearly to the top of the spindle, ybutinstead but Ia short distan'ceabove the base of the'V bolster f thatapproximate results will be attained to that derived from the im- Y lproved construction hereinabove described die and by the traversingmotion of the bolster i and in a proportionate degree as .the bearing isplaced and reciprocated nearer to or farther from the top of thespindle,and I therefore wish it understood that I do not limit myself tothe use of a bolster of that length which is necessary -tov produce theextreme result, but that I also claim the use of others of like orsubstantially the same construction, but which, from an inferior lengthof tube or ofy traverse, only produce approximat-e results to that abovespecied l The bobbin s,Figs. 1, 2, 8, 9, is formed as shown, andincloses the upperpart of the bols'ter-tubef, having a bearing of abouthalf an inch at the top of the spindle. The lower end of the bobbinrests upon the geared col' lar n, Figs. 1, 2, 5, and 6, which is fitted"to turn freely onv thelower part of the tube f, Vresting on theshoulder@ at its base. 'lhe collar n isrevolved by m eans ofthe gear m,(shown in dotted lines,),and the motion thereof is communicated to thebobbinby means of the dog 'i on the collar, which enters one ofthenotches cut in the bottom of v'thebobhin in the usual way. Besides thisthe collar n is'lformed with an annular lip, r, at its periphery, which4surrounds and incloses they lower end of the bobbin, giving it acentral inclination and position on the'colla-r, and preventing itsinterior surface from coming in contact with the tube f, and, by thefriction which it would create,. interfere with its free opera-tion.This lip rl p also prevents the oil with which the collar is vlubricatedfrom being thrown oft' in revolving, and has otlierimportantadvantages.-

' The ier 'l is formed in the usual way, and theypre'sseriuger u is thecontinuation of a long rod or'wire, 17?, tolwhich it is `bent at rightangles, as shown in Fig. l0.- flhis rod p is arranged parallel with thedeliveringtube 7c of theilier, having one bearing in the ear a: near theend and upon one side Aof the same, and

another bearing at its-upper end in the ear 10,.'

on the opposite side of thetube k, the end ot' therod being :curved atvright'angles at the I' top, as shown in Figs. 10 and 11.. And it willbe seenby reference to Fig. Vl() that the upper l surface of the 'ear ais inclined, andl that the bend or offset in the rod above restsou saidincline; also, that there is 'an incline slot or opening through whichthe'upper curved end of the rod p entersthe ear w, the said curved endresting on the lower surface of the inclined slot, and that inconsequence of the swinging ofthe presser-linger upon-these two bearingsin direction from the center of the bobbin, it, with its rod 12,: islifted by turning upon the y i inclined' surfaces mentioned, so thatwhen the presser finger lis lleft to itself the Weight of it andl itsrod Aif), by the action of the inclined surfaces, is swung with atendency ofthe finger to press toward thecenter and against the,A

surface of the bobbin with the force'of their combined weight vacting'on the inclined sur; face in opposition to the centrifugal force're` ifi revolution has ceased.

snlting from its rapid revolution. The iu- The construction and mode ofarranging the elined surfaces serve chiefiy -to maintain an bolster withthe spindle and traverse-rail, or adequate pressure ofthe presser-fingeragainst its equivalent, substantially as described, for the bobbin whilethe latter is nt rest after its the purpose specified.

' f THOMAS MAYOR.

Having diseribed my invention, what I/ 4NitHeSseS: elaimvand desiretosecnre by Letters Patent, l ISA AG A. BUNNELL,

1s-- FRANCIS CoLwELLJr.

